Frequency ES3020is designed to measure the frequency of the alternating current to power plants and substations and transmission of its values ​​on the interface RS485.

Connects directly to the ITN, and measures the rms voltage at its secondary.

Frequency ES3020has the ability to install the interface to theNand setting the upper and lower permissible values ​​of the measured frequency.

Indicates the current value of the measured voltages, taking into account the set KNand the dimension of the measured values ​​of the frequency "Hz."The number of digits - five decimal places.

Frequencyindicates the flashing of theES3020«min» or «max» out of the measured frequency of the boundary set setting, with a closed output contact appropriate relay.

Designed for use in stationary conditions, macro-regions with a temperate climate with temperatures ranging from 5 º C to 40 C and 90% relative humidity at 25 ° C.

Technical characteristics of the devicesES3020 frequency counters:

Ambient air temperature - 20 º C ± 2 º C;

Relative humidity - 30% -80%;

Atmospheric pressure - 60kPa-106, 7kPa (460mm.rt.st.-800mm.rt.st.);

The nominal value of the measured frequency - 50Hz or 60Hz;

The range of measured frequency meter frequency ES3020 - from 45Hz to 55Hz or 55Hz to 65Hz from;

Frequency range of the measured AC frequency - 45Hz to 65Hz from;

Setting range of settings

For f H = 50 Hz

For f H = 60 Hz

Accepted value of the lower

Upper permissible values

Accepted value of the lower

Upper permissible values

45.2 Hz-49 8Gts

50.2 Hz-54 8Gts

55.2 Hz-59, 8Gts

60.2 Hz-64 8Gts

Limits of the basic reduced error of measurement equal to ± 0,01% to the nominal value of the measured frequency;

Burst Tolerance is determined by the basic reduced error of measurement;

Frequency ES3020heat and crymophylactic at temperatures ranging from 5 º C to 40 ° C. The limit of additional measurement errorfrequency ES3020,due to changes in ambient temperature from normal to any temperature in the temperature range equal to ± 0,1% for every 10 C temperature change;

Frequency ES3020humidity resistant to climatic conditions of the workers;

The device meets the requirements under the influence of an external magnetic field with induction 0.5 mT, 50 Hz ± 1 Hz at the most unfavorable direction of the magnetic field;

Frequency ES3020meets the requirements for measuring the effective value of alternating voltage in the range of input voltages from 30V AC to 250V;

Power supply is carried out:

a) AC voltage 120V-250V, 50 Hz ± 5 Hz or 60 Hz ± 5 Hz;

b) constant voltage 120V-250V;

Consumed by the devicefrequency ES3020power should not exceed 4V ∙ A;

The device meets the requirements of the changing supply frequency:

a) AC frequency of 45Hz, 55Hz or 55Hz-65Hz 120V to 250V from;

b) DC power supply frequency from 120V to 250V;

Frequency ES3020meets after exposure to overload the input voltage 375V for 1 minute in 2 minutes after removal of the overload;

Frequency in the EU 3020 normal conditions of use complies with the time after setting the operating mode.Operation mode setup time (afterwarm-th) is 5 minutes;

Mode of the devicefrequency ES3020 continuous.Duration of work is continuous vnoy unlimited;

Average life - at least 12 years, mean time between failures - at least 36,000 hours under normal conditions of use;

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LLC "Zapadpribor" is the supplier of ammeters, voltmeters, power meters, frequency meters, phase meters, shunts and other devices such manufacturers of measuring equipment, such as: PO " Elektrotochpribor " (M2044, M2051), Omsk, OAO "Instrument-Making Plant "Vibrator" (M1611, Ts1611), St. Petersburg, JSC "Krasnodar ZIP " (E365, E377, E378), LLC " ZIP Partner" (Ts301 , Ts302 , Ts300) and "ZIP" Yurimov"(M381, C33), Krasnodar, OAO "VZEP" ("Vitebsk factory of electrical appliances") (E8030, E8021), Vitebsk, OAO "Electropribor" (M42300, M42301, M42303, M42304, M42305, M42306), Cheboksary, JSC "Elektroizmeritel" (Ts4342, Ts4352, Ts4353 ) Zhitomir, PJSC "Uman factory "Megger" (F4102, F4103, F4104, M4100), Uman.